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Chapter 1: Q5. (page 52)

Evaluate the expression whenp=12鈥�鈥�and鈥�鈥�q=15.

5. 35-p

Short Answer

Expert verified

The value of 35-p is 23

Step by step solution

01

Step 1: What is an algebraic expression?

In mathematics, a variable (usually an English alphabet) standing for an unknown value in any equation or Algebraic Expression. In general we used x, y, z or t (time), d (distance) and r for radius.

Algebraic expressions include at least one variable and at least one operation (addition, subtraction, multiplication, division).

For example, 2(x + 8y) is an algebraic expression.

02

Example of the variable, constant term and the coefficient 

03

Step 3: Evaluate the expression 35 – p when p = 12 

Consider, the expression provided in the question:

35-p

To find the value of 35-pwhenp=12, it is needed to substitute12 for p

The expression will be obtained as: Substitute p=12

35鈭�p35鈭�12=23 [Subtraction]

The value of 35-pis 23

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